Powering A Cap L; Power Led Behavior; Using The Power-Down Button - CommScope ION E Series Installation Manual

Installing CAP Ls

Powering a CAP L

The CAP L is powered on as soon as power is connected to it. Under normal operating conditions, the Power
LED turns on briefly when the unit is first detected. It will then go out briefly, followed by an initialization
period during which the Power LED flashes slowly while the CAP L is configured. The Power LED remains a
steady blue (not flashing) once the unit reaches a fully operational state, which typically occurs within 45
seconds.

Power LED Behavior

Power LED behavior for a CAP L with a Fiber Interface
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Off—CAP L is not powered on.
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Steady blue—CAP L is powered on and operational.
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Slow flashing blue—CAP L is powered on and initializing.
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Rapid flashing blue—CAP L Unit Identifier active via the Flash LED function in the ION-E GUI.
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Power LED behavior for a CAP L with a Copper Interface
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Off—CAP L is not powered on.
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Steady blue—CAP L is powered on and operational.
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Slow flashing blue—CAP L is powered on and initializing.
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Rapid flashing blue—CAP L Unit Identifier active via the Flash LED function in the ION-E GUI.
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Slow pulse blue (ION-E Software V2.3 or later only)—if the Power LED cycles through a slow increase
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in brightness for 1 second followed by a slow decrease in brightness for 1 second, the CAP L is
powered on but is currently unable to establish a 10 Gbps data link to the WCS Subrack. There are two
possible causes:
There is an installation problem, such as a defective cable or connector, a cable that is too long, or

a cable crosstalk problem. Any of these problems can lead to inadequate SNR at the remote unit
and an inability to link. (This is the most likely cause if this is a newly-installed unit.)
This condition can also be triggered when a crystal oscillator has aged over the course of several

years. In this case, the failure to link at startup will initiate a self-calibration process which can
take several minutes. Once this self-calibration is complete, the unit will resume normal
operation. (This is the most likely cause for units that have worked correctly in the past.)

Using the Power-Down Button

If you press the CAP L Power-Down button, the CAP L will go into sleep mode. This allows you to safely
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disconnect any cables connected to the CAP L.
If you press the Power-Down button, the only way to bring the CAP L back to a fully operational state, is
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to do one of the following:
Disconnect the data cable from Port 1, and then reconnect it.
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For an externally-powered CAP L, remove the power cable for 10 seconds, and then reconnect it.
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ION®-E Series Low Power Carrier Access Point Installation Guide
Page 48
M0201AAC
© April 2018 CommScope, Inc.